Results 91 to 100 of about 337,426 (287)

Spatiotemporal chaos and the dynamics of coupled Langmuir and ion-acoustic waves in plasmas

open access: yes, 2010
A simulation study is performed to investigate the dynamics of coupled Langmuir waves (LWs) and ion-acoustic waves (IAWs) in an unmagnetized plasma. The effects of dispersion due to charge separation and the density nonlinearity associated with the IAWs,
A. P. Misra   +4 more
core   +1 more source

Trace Ru‐Doped PtCuRu@PtRu Core‐Shell Electrocatalyst for CO‐Resilient Methanol Oxidation

open access: yesAdvanced Science, EarlyView.
We engineered a trace Ru‐doped PtCuRu@PtRu core‐shell nanostructure. This design exploits lattice mismatch‐induced compressive strain between the PtCuRu ternary core and trace Ru‐doped Pt‐rich shell, systematically downshifting the Pt d‐band center to weaken *CO adsorption energetics.
Tianrui Xue   +7 more
wiley   +1 more source

COMPARATIVE STUDY OF THE LEAD (II) REMOVAL FROM SIMULATED WASTEWATER USING GRANULAR ACTIVATED CARBON, RISE HUSK, AND SAW DUST

open access: yesJournal of Engineering and Sustainable Development, 2016
The adsorption of Pb (II) ions onto Granular Activated Carbon (GAC), Rise Husk (RH) and Saw Dust (SD) was investigated. The effect of pH, initial lead (II) concentration, dose of adsorbents, contact time and temperature were studied in batch experiments.
Younis Swadi Talaa
doaj  

The impact of organic residues on lead adsorption in two types of calcareous soils

open access: yesSiberian Journal of Life Sciences and Agriculture
The experiment was conducted in the laboratories of the University of Agriculture in Basra University. The study included investigating the behavior of lead adsorption in soil samples at equilibrium conditions and factors affecting adsorption by organic ...
Ayat Jasem Mohammed, Salwa Jumaa Fakher
doaj   +1 more source

Biosorption characteristics of Pennisetum glaucum for the removal of Pb(II), Ni(II) and Cd(II) ions from aqueous medium

open access: yesGreen Chemistry Letters and Reviews, 2017
Kinetics and thermodynamic studies were carried out for the removal of heavy metals (Pb+2, Ni+2 and Cd+2) from aqueous solution by using Pennisetum glaucum. Surface morphology and elemental analysis were investigated with scanning electron microscope and
Amna Yousaf   +4 more
doaj   +1 more source

Separated spin-up and spin-down evolution of degenerated electrons in two dimensional systems: Dispersion of longitudinal collective excitations in plane and nanotube geometry

open access: yes, 2014
Applying the separated spin evolution quantum hydrodynamics to two-dimensional electron gas in plane samples and nanotubes located in external magnetic fields we find new kind of wave in electron gas, which is called the spin-electron acoustic wave ...
Andreev, Pavel A., Kuz'menkov, L. S.
core   +1 more source

Uncovering the Role of Intrinsic Magnetic Order in Oxygen Evolution Reaction Activity With Operando Spectroscopy

open access: yesAdvanced Energy Materials, EarlyView.
Operando magnetic spectroscopy provides insight into how intrinsic magnetic order modulates the oxygen evolution reaction on La0.67Sr${\rm La}_{0.67}{\rm Sr}$0.33MnO$_{0.33}{\rm MnO}$3$_3$ thin films. Temperature‐dependent operando FMR and ambient‐pressure XMCD suggest a correlation between activity and the emergence of ferromagnetic regions near and ...
Emma van der Minne   +9 more
wiley   +1 more source

Structural Investigation of Langmuir and Langmuir−Blodgett Monolayers of Semifluorinated Alkanes

open access: yesThe Journal of Physical Chemistry B, 2006
The behavior of a semi-fluorinated alkane (C(10)F(21)C(19)H(39)) has been studied at the air-water interface by using surface pressure and surface potential-area isotherms as well as infrared spectroscopy for the Langmuir-Blodgett films. In addition, based on the quantum chemical PM3 semiempirical approach, the dimer structure was investigated, and the
Dynarowicz-Łątka, Patrycja   +5 more
openaire   +3 more sources

Spectroscopic characterizations of the mixed Langmuir-Blodgett (LB) films of 2,2'-biquinoline molecules: evidence of dimer formation

open access: yes, 2008
This communication reports the -A isotherms and spectroscopic characterizations of mixed Langmuir and Langmuir-Blodgett (LB) films of nonamphiphilic 2, -biquinoline (BQ) molecules, mixed with polymethyl methacrylate (PMMA) and stearic acid (SA). The pi-A
Acharya   +17 more
core   +1 more source

Accelerating Biosensor Discovery: A Computationally‐Driven Pipeline for Microplastics Monitoring

open access: yesAdvanced Intelligent Discovery, EarlyView.
A computationally guided pipeline unites molecular simulation, synthetic biology, electrochemical engineering, and machine learning to accelerate biosensor discovery. A Bacillus anthracis carbohydrate‐binding module is used to develop a high‐performance micro‐ and nanoplastics sensor with greatly reduced error and variability.
Gabriel X. Pereira   +13 more
wiley   +1 more source

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